 /*******************************************************************************
  * Copyright (c) 2003, 2005 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.ui;

 /**
  * An interface that descriptor classes may implement in addition to their
  * descriptor interface. This indicates that they may or may not originate from
  * a plugin contribution. This is useful in various activity filtering
  * scenarios.
  *
  * @since 3.0
  */
 public interface IPluginContribution {

     /**
      * @return the local id of the contribution. Must not be <code>null</code>.
      * This should correspond to the extension-specific identifier for
      * a given contribution.
      */
     public String getLocalId();

     /**
      * @return the id of the originating plugin. Can be <code>null</code> if
      * this contribution did not originate from a plugin.
      */
     public String getPluginId();
 }

